Explicație pas cu pas:
a)
[tex]1 \frac{3}{4} - \frac{5}{5} = \frac{7}{4} - \frac{5}{4} = \frac{7 - 5}{4} = \frac{2}{4} = \frac{1}{2} \\ [/tex]
b)
[tex] \frac{11}{5} - 2 \frac{4}{5} = \frac{11}{5} - \frac{14}{5} = \frac{11 - 14}{5} = - \frac{3}{5} \\ [/tex]
c)
[tex]- \frac{5}{6} - 3 \frac{5}{6} = - \frac{5}{6} - \frac{23}{6} = - \frac{5 + 23}{6} = - \frac{28}{6} = - \frac{14}{3} \\ [/tex]
d)
[tex]- 2 \frac{3}{8} - \frac{17}{8} = - \frac{19}{8} - \frac{17}{8} = - \frac{19 + 17}{8} = - \frac{36}{8} = - \frac{9}{2} \\ [/tex]
e)
[tex] - \frac{6}{7} - ( - 2 \frac{2}{7}) = - \frac{6}{7} + \frac{16}{7} = \frac{16 - 6}{7} = \frac{10}{7} \\ [/tex]
f)
[tex]- 4 \frac{1}{5} - ( - \frac{2}{5}) = - \frac{21}{5} + \frac{2}{5} = - \frac{21 - 2}{5} = - \frac{19}{5} \\ [/tex]
